Overview
T&R Test Equipment is a market leader in the field of
high current micro-ohmmeters, manufacturing durable,
accurate and user friendly units. The DSM 200 is a high
current micro-ohmmeter suitable for measuring very low
resistances in a wide range of applications. The unit is
equally suited to commissioning, maintenance, and
production line environments. Contact resistances in
circuit breakers, switch panels, isolators, and busbar
joints are all easily and safely measured.

Features

0 to 10 Amp and 0 to 200 Amp DC test current.

0.1µΩ resolution.

mV. A, and µΩ displayed simultaneously.

Direct Ohms reading at any current.

Large back-lit liquid crystal display (LCD).

Thermal and over-current protection.

Compact and portable.

Isolated RS-232 interface for printer or PC.

Triple supply voltage.

Microprocessor controlled.

Supplied with 3-meter output lead set.

The DSM 200 is simple to
operate, only requiring the user to switch the output
'ON' and set the test current. Selection of all ranges
is fully automatic, and current, voltage and resistance
are displayed simultaneously at all times. The
resistance is calculated from the test current and sense
voltage, and there is no need to set an exact test
current to guarantee an accurate test result. To assist
the user, all readings are held on the display when the
output is switched 'OFF'.

Connecting the DSM 200 to a
PC running the optional DSMlog software adds
data capture and reporting functions to the
unit, allowing test results to be exported
directly to Excel or saved to a file.

All results are time stamped, and
comments may be added to each test. Data
capture can be controlled from the PC, and
the resistance of a test object can be
monitored over a period of time.

Alternatively, connecting a printer
allows all of the test parameters to be
printed automatically whenever the reading
is held.

Ordering
Information

T&R Test
Equipment DSM 200

Digital High Current
Micro-Ohmmeter, Supplied with: Mains lead,
User manual, 3-meter High current output lead
set, and Spare fuses.

Lead Set: A 3-meter
output lead set is supplied with the DSM 200 which
includes two (2) 25mm2 200 amp leads
terminated
in copper battery clips, a 10 amp lead, and a sense lead
terminated in copper crocodile clips.